Startech PEXUSB312C3 Product Data Sheet

2-port 10Gbps USB C PCIe Card - USB 3.1 Gen 2 Type-C PCI Express Host Controller Add-On
Card - Expansion Card - USB 3.2 Gen 2x1 PCIe Adapter 15W/port - Windows, macOS, Linux

Product ID: PEXUSB312C3

This PCIe USB 3.1 Gen 2 card installs into an available PCI-Express slot in your computer and enables you to
upgrade your current system by adding two USB-C (10Gbps) ports.

Also known as USB 3.2 Gen 2x1, this USB 3.1 Gen 2 card adds two 10Gbps USB Type-C ports to your computer.

Utilizing an ASMedia ASM3142 chipset, this card harnesses the speed of USB 3.1 Gen 2. With higher data
throughput support, this USB 3.1 Gen 2 PCIe expansion card is a necessity for external drives and many other USB

3.1 Gen 2 peripherals and includes an optional SATA power connector for high power devices.

The card is backward compatible with USB 3.0 (5Gbps) and USB 2.0 (480mbps) devices. The card works with newer
USB-C devices, but can easily support your existing USB-A peripherals using inexpensive USB Type C cables and
adapters. See our Accessories Tab for supported options.

The USB 3.1 card is compatible with Windows, Linux and macOS operating systems. The card includes both
standard-profile and low-profile brackets to install in various form-factor PCs and servers.

StarTech.com conducts thorough compatibility and performance testing on all our products to ensure we are meeting
or exceeding industry standards and providing high-quality products to IT Professionals. Our local StarTech.com
Technical Advisors have broad product expertise and work directly with our StarTech.com Engineers to provide
support for our customers both pre and post-sales.

The PEXUSB312C3 is backed by a StarTech.com 2-year warranty and free lifetime technical support.

Certifications, Reports and Compatibility

Applications

• Expand the USB capabilities of your system with two USB-C ports, or install the card as a vital hardware component

Hardware

Warranty

2 Years

Ports

2

Interface

USB 3.1 Gen 2

Bus Type

PCI Express

Card Type

Standard Profile (LP bracket incl.)

Port Style

Integrated on Card

Industry Standards

USB 3.2 Specification Rev. 2.0
USB Specification Rev. 2.0
PCI Express Base Specification Rev. 3.0
Intel xHCI Specification Rev. 1.1
UASP (USB Attached SCSI Protocol) Rev. 1.0

Chipset ID

ASMedia - ASM3142

when building a new PC

• Upgrade an older PCIe equipped desktop from USB 3.0/2.0 to USB 3.1 Gen 2 (10Gbps) with Type C

• Ideal for file backups, video editing, and data recovery, using high-bandwidth USB 3.1 Gen 2 external storage
solutions

Features

• HIGH PERFORMANCE: USB 3.1 Gen 2 or USB 3.2 Gen 2x1 PCIe Host Controller card supports Multiple INs,
maintains max bandwidth even when mixed speed devices are connected; 2x USB-C 10Gbps per port

• POWER: Expansion card w/ SATA power header supplies supplemental power to the USB Type-C ports (when
motherboard power is insufficient) providing up to 5V 3A (15W) via the USB-C ports

• MAX PERFORMANCE WITH USB STORAGE DEVICES: 2-port USB-C PCIe Card adapter supports USB Attached
SCSI Protocol (UASP) optimizing USB performance w/ external storage devices like SSDs, HDDs, NVMe drives

• COMPATIBILITY: Installs in full/low-profile PCIe 3.0 x4 desktop/server slot (lower performance w/ PCI-e 2.0);
Windows/Linux/macOS w/auto driver install (Windows 8 & above); Works w/USB 3.2/3.1/3.0/2.0

• THE STARTECH.COM ADVANTAGE: StarTech.com offers a 2-year warranty & free lifetime 24 hour technical
support on thisdual port USB-C PCI Express Add On Card w/ full & low profile bracket incl.